{"ok":true,"trend":{"id":354200,"platform":"hn","region":"global","key":"500k facial scans at uk stations yield no arrests, 1 false positive","title":"500k facial scans at UK stations yield no arrests, 1 false positive","url":"https://www.theguardian.com/technology/2026/sep/29/trial-live-facial-recognition-cameras-london-stations-false-positive","first_seen":"2026-09-29T11:50:40.069601Z","last_seen":"2026-09-29T18:12:47.492341Z","last_rank":7,"peak_rank":1,"last_volume":403,"peak_volume":403,"seen_count":31,"score":85.7,"category_hint":"tennis","section":"technology","category":"technology","summary":"A trial of live facial recognition cameras at London railway stations scanned around half a million faces and produced no arrests, with a single false positive match. The results, reported by the Guardian, are drawing criticism from privacy advocates and civil liberties groups, who question the effectiveness and cost of mass biometric surveillance in public spaces, while reigniting debate over police use of the technology.","why":"The trial's poor results give fresh ammunition to critics of facial recognition surveillance at a time of expanding public-sector use.","tone":"negative","entities":["London","British Transport Police","The Guardian"],"summarized_at":"2026-09-29T17:54:37.039766Z","meta":{"via":"scan","lang":"en","link":"https://www.theguardian.com/technology/2026/sep/29/trial-live-facial-recognition-cameras-london-stations-false-positive","term":"atp","hn_id":"49891480","comments":243},"nw":null,"promo":null,"kind":null,"importance":null,"hidden":false,"hide_reason":null,"judged_at":null,"title_en":"500,000 facial scans at UK stations yield no arrests","section_name":"Technology","category_name":"Technology","timeline":[{"captured_at":"2026-09-29T11:50:40.069601Z","rank":29,"volume":11},{"captured_at":"2026-09-29T12:05:39.706069Z","rank":22,"volume":39},{"captured_at":"2026-09-29T12:20:39.752834Z","rank":20,"volume":59},{"captured_at":"2026-09-29T12:35:39.758245Z","rank":20,"volume":79},{"captured_at":"2026-09-29T12:50:39.776533Z","rank":18,"volume":98},{"captured_at":"2026-09-29T13:05:39.684441Z","rank":15,"volume":120},{"captured_at":"2026-09-29T13:20:39.843345Z","rank":12,"volume":140},{"captured_at":"2026-09-29T13:35:39.599502Z","rank":10,"volume":161},{"captured_at":"2026-09-29T13:35:47.256574Z","rank":5,"volume":163},{"captured_at":"2026-09-29T13:50:39.640031Z","rank":10,"volume":171},{"captured_at":"2026-09-29T13:56:47.397703Z","rank":12,"volume":183},{"captured_at":"2026-09-29T14:05:39.660449Z","rank":8,"volume":189},{"captured_at":"2026-09-29T14:20:39.760860Z","rank":7,"volume":211},{"captured_at":"2026-09-29T14:35:39.916015Z","rank":7,"volume":228},{"captured_at":"2026-09-29T14:50:39.767067Z","rank":7,"volume":248},{"captured_at":"2026-09-29T14:57:47.353090Z","rank":2,"volume":251},{"captured_at":"2026-09-29T15:05:39.791417Z","rank":7,"volume":261},{"captured_at":"2026-09-29T15:18:47.402199Z","rank":8,"volume":275},{"captured_at":"2026-09-29T15:20:39.784756Z","rank":6,"volume":273},{"captured_at":"2026-09-29T15:35:40.431321Z","rank":6,"volume":283},{"captured_at":"2026-09-29T15:50:39.605198Z","rank":6,"volume":301},{"captured_at":"2026-09-29T16:05:40.073767Z","rank":5,"volume":319},{"captured_at":"2026-09-29T16:19:47.502571Z","rank":2,"volume":337},{"captured_at":"2026-09-29T16:20:39.612583Z","rank":4,"volume":333},{"captured_at":"2026-09-29T16:35:39.694641Z","rank":4,"volume":350},{"captured_at":"2026-09-29T16:40:47.549505Z","rank":5,"volume":354},{"captured_at":"2026-09-29T16:50:39.677530Z","rank":4,"volume":357},{"captured_at":"2026-09-29T16:50:47.507534Z","rank":8,"volume":358},{"captured_at":"2026-09-29T17:05:39.667185Z","rank":4,"volume":360},{"captured_at":"2026-09-29T17:20:39.787678Z","rank":4,"volume":370},{"captured_at":"2026-09-29T17:35:39.655437Z","rank":3,"volume":383},{"captured_at":"2026-09-29T17:41:47.274436Z","rank":1,"volume":386},{"captured_at":"2026-09-29T17:50:39.628131Z","rank":3,"volume":387},{"captured_at":"2026-09-29T18:02:47.826390Z","rank":4,"volume":398},{"captured_at":"2026-09-29T18:05:39.644972Z","rank":3,"volume":397},{"captured_at":"2026-09-29T18:12:47.492341Z","rank":7,"volume":403}],"posts":[{"platform":"hn","url":"https://news.ycombinator.com/item?id=49891480","author":"ilamont","title":"500k facial scans at UK stations yield no arrests, 1 false positive","snippet":null,"posted_at":"2026-09-29T11:35:18Z","likes":403}],"elsewhere":[],"window":"7d"}}